To Analyse the Effects of Process Parameterson P-21 Mold Steel on WEDM Using TaguchiApproach

Wire Electric discharge machine is a specialized thermal machining process capable of accurately machining parts with varying hardness and complex shapes. The material P-21 used in the present work study finds out the application as mould steel. The main aim of this investigation is to optimize the various process parameters of WEDM for single response characteristics using L18 orthogonal array to find out the performance characteristics from desired value. The present work was carried out on P-21 mould steel as work piece and zinc coated brass wire as tool electrode. Response characteristics are cutting speed and surface roughness. Three trial experiments were conducted and the average is chosen as the particular experimental condition. Experiment were performed by using different variables like input current, pulse-on, pulse-off, wire feed and wire tension. In the end confirmation experiment is carried out to validate the effectiveness of proposed optimal condition